A patient with agoraphobia has a fear of wide-open spaces.

The normal cervical canal is 2cm in length. Effacement is the thinning of the cervix as the body prepares for delivery. Thus, a 2cm cervix is 0% effaced and a 0cm cervix is 100% effaced.

The question requires the knowledge that Escherichia coli is a facultative, Gram negative, lactose fermenting bacteria. EMB (eosin methylene blue), or Mac (MacConkey) media is superior for isolating Escherichia coli because it is both selective and differential. Nutrient agar is neither selective nor differential. Selenium enriched media would not help identify this bacteria because Escherichia coli does not require this supplemented media to grow. Phenethyl alcohol can be used to select for anaerobic bacteria, which is of no utility in this situation.

The digestion of dietary carbohydrates is initiated by amylase, an enzyme present in saliva. This enzyme breaks down long carbohydrate molecules into shorter units such as disaccharides. Lipase breaks down fats and is not present in the saliva, rather it is secreted by the pancreas into the duodenum. Pepsin is a protease - an enzyme that breaks down proteins. This enzyme is secreted by the chief cells of the stomach in its zymogen form (pepsinogen). It is activated by the product of the parietal cells (hydrochloric acid). Note that amylase is also secreted by the pancreas to complete the chemical digestion of carbohydrates into monosaccharides so that they can be absorbed by the brush border of the small intestine.

A patient with agoraphobia has a fear of wide-open spaces.

A positive Murphy's sign is an indication of cholecystitis, or gallbladder inflammation. Testing for Murphy's sign is performed during an abdominal exam by asking the patient to breathe out slowly while the fingers of the examiner are slid under the right costal margin and held in place with firm pressure. The patient is then asked to inhale, which forces the abdominal contents upward. Murphy's sign is considered positive if the patient winces or flinches when breathing in, due to pain when the inflamed gallbladder comes in contact with the examiner's fingertips.

Rovsing's sign, psoas sign, and McBurney's point are all tests for appendicitis.

A patient with agoraphobia has a fear of wide-open spaces.

The digestion of dietary carbohydrates is initiated by amylase, an enzyme present in saliva. This enzyme breaks down long carbohydrate molecules into shorter units such as disaccharides. Lipase breaks down fats and is not present in the saliva, rather it is secreted by the pancreas into the duodenum. Pepsin is a protease - an enzyme that breaks down proteins. This enzyme is secreted by the chief cells of the stomach in its zymogen form (pepsinogen). It is activated by the product of the parietal cells (hydrochloric acid). Note that amylase is also secreted by the pancreas to complete the chemical digestion of carbohydrates into monosaccharides so that they can be absorbed by the brush border of the small intestine.

A papanicolaou test (pap smear) may be preformed routinely on adult women as a screening for cervical cancer. A rapid antigen detection test (rapid strep test), urine analysis, cervical cerclage, or vaginal ultrasound would not be part of routine screening.

Actinic keratosis occasionally develops into squamous cell carcinoma and is generally removed prophylactically. Actinic keratosis is not associated with development of any of the other skin cancer types listed.